自五十年代世界上第一座核电站至今已有300多座,从现有经验和资料来看,核电站要求在自重或可能遭受到最大地震荷载情况下,地基的差异沉降不大于万分之一,地基的强度不低于490 KPa,以确保反应堆和冷却水供水管道的安全。对于岩石地基,其强度大多是可以满足的,但差异沉降指标就不一定 Since the 1950s, the world’s first nuclear power plant has more than 300 seats. Judging from existing experience and data, nuclear power plants require that the differential settlement of the foundation not exceed one ten-thousandth The strength of the foundation is not less than 490 KPa to ensure the safety of reactor and cooling water supply pipes. For rock foundations, the strength is mostly satisfactory, but the differential settlement index is not necessarily